GBPHY_PROTOCOL
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_GPIO) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_I2C) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_PWM) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_SDIO) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_SPI) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_UART) },
{ GBPHY_PROTOCOL(GREYBUS_PROTOCOL_USB) },